KS959 USB IrDA dongle support

Hi Dave,

Last IrDA patch for 2.6.23-rc1, if it's not too late...

This patch adds support for the KingSun KS-959 USB IrDA dongle.

This dongle does not follow the usb-irda specification, so it needs its own special driver. First, it uses control URBs for data transfer, instead of bulk or interrupt transfers; the only interrupt endpoint exposed seems to be a dummy to prevent the interface from being rejected. Second, it uses obfuscation and padding at the USB traffic level, for no apparent reason other than to make reverse engineering harder (full details on obfuscation in comments at beginning of source). Although it is advertised as a "4 Mbps FIR dongle", it apparently loses packets at speeds greater than 57600 bps.

On plugin, this dongle reports vendor and device IDs: 0x07d0:0x4959 .

From: Alex Villacís Lasso <[email protected]>

---
 drivers/net/irda/Kconfig     |   14 +
 drivers/net/irda/Makefile    |    1 +
 drivers/net/irda/ks959-sir.c |  919 ++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 934 insertions(+), 0 deletions(-)
 create mode 100644 drivers/net/irda/ks959-sir.c

index 2098d0a..35321dc 100644
@@ -164,6 +164,20 @@ config EP7211_DONGLE
 
 
 
+config KS959_DONGLE
+	tristate "KingSun KS-959 IrDA-USB dongle"
+	depends on IRDA && USB && EXPERIMENTAL
+	help
+	  Say Y or M here if you want to build support for the KingSun KS-959
+	  IrDA-USB bridge device driver.
+
+	  This USB bridge does not conform to the IrDA-USB device class
+	  specification, and therefore needs its own specific driver.
+	  This dongle supports SIR speeds only (9600 through 57600 bps).
+
+	  To compile it as a module, choose M here: the module will be called
+	  ks959-sir.
+
 comment "Old SIR device drivers"
 
 config IRPORT_SIR

index 2808ef5..9212c15 100644
@@ -47,6 +47,7 @@ obj-$(CONFIG_MA600_DONGLE)	+= ma600-sir.o
 obj-$(CONFIG_TOIM3232_DONGLE)	+= toim3232-sir.o
 obj-$(CONFIG_EP7211_DONGLE)	+= ep7211-sir.o
 obj-$(CONFIG_KINGSUN_DONGLE)	+= kingsun-sir.o
+obj-$(CONFIG_KS959_DONGLE)	+= ks959-sir.o
 
 # The SIR helper module
 sir-dev-objs := sir_dev.o sir_dongle.o

1.5.2.3

From: Samuel Ortiz <[email protected]>
Date: Mon, 23 Jul 2007 00:32:17 +0300

Too late, Linus just closed the merge window, you had two weeks to submit this :-)

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Too bad...
I submitted it as soon as it was ready. Will we have to wait until the 2.6.24 merge window, or can it be applied earlier as it's a fully standalone driver ?

Cheers,
Samuel.

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From: "Samuel Ortiz" <[email protected]>
Date: 23 Jul 2007 07:25:06 -0000

Please wait until I open up a net-2.6.24 tree, you can submit it to me then.

Thanks.

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You can always send Linus a copy and ask but if its just finished then far better to send it to Andrew so that it can get testing and picked at in -mm then merged next time around when polished.

Alan

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